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2660 lines
69 KiB
2660 lines
69 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* |
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* Bluetooth support for Intel devices |
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* |
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* Copyright (C) 2015 Intel Corporation |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/firmware.h> |
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#include <linux/regmap.h> |
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#include <asm/unaligned.h> |
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|
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#include <net/bluetooth/bluetooth.h> |
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#include <net/bluetooth/hci_core.h> |
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|
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#include "btintel.h" |
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|
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#define VERSION "0.1" |
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|
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#define BDADDR_INTEL (&(bdaddr_t){{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}}) |
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#define RSA_HEADER_LEN 644 |
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#define CSS_HEADER_OFFSET 8 |
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#define ECDSA_OFFSET 644 |
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#define ECDSA_HEADER_LEN 320 |
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|
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#define CMD_WRITE_BOOT_PARAMS 0xfc0e |
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struct cmd_write_boot_params { |
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u32 boot_addr; |
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u8 fw_build_num; |
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u8 fw_build_ww; |
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u8 fw_build_yy; |
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} __packed; |
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|
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int btintel_check_bdaddr(struct hci_dev *hdev) |
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{ |
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struct hci_rp_read_bd_addr *bda; |
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struct sk_buff *skb; |
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|
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skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, |
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HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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int err = PTR_ERR(skb); |
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bt_dev_err(hdev, "Reading Intel device address failed (%d)", |
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err); |
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return err; |
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} |
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|
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if (skb->len != sizeof(*bda)) { |
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bt_dev_err(hdev, "Intel device address length mismatch"); |
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kfree_skb(skb); |
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return -EIO; |
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} |
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|
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bda = (struct hci_rp_read_bd_addr *)skb->data; |
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|
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/* For some Intel based controllers, the default Bluetooth device |
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* address 00:03:19:9E:8B:00 can be found. These controllers are |
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* fully operational, but have the danger of duplicate addresses |
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* and that in turn can cause problems with Bluetooth operation. |
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*/ |
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if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) { |
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bt_dev_err(hdev, "Found Intel default device address (%pMR)", |
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&bda->bdaddr); |
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set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); |
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} |
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|
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kfree_skb(skb); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_check_bdaddr); |
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|
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int btintel_enter_mfg(struct hci_dev *hdev) |
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{ |
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static const u8 param[] = { 0x01, 0x00 }; |
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struct sk_buff *skb; |
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|
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skb = __hci_cmd_sync(hdev, 0xfc11, 2, param, HCI_CMD_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Entering manufacturer mode failed (%ld)", |
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PTR_ERR(skb)); |
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return PTR_ERR(skb); |
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} |
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kfree_skb(skb); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_enter_mfg); |
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|
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int btintel_exit_mfg(struct hci_dev *hdev, bool reset, bool patched) |
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{ |
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u8 param[] = { 0x00, 0x00 }; |
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struct sk_buff *skb; |
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|
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/* The 2nd command parameter specifies the manufacturing exit method: |
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* 0x00: Just disable the manufacturing mode (0x00). |
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* 0x01: Disable manufacturing mode and reset with patches deactivated. |
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* 0x02: Disable manufacturing mode and reset with patches activated. |
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*/ |
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if (reset) |
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param[1] |= patched ? 0x02 : 0x01; |
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|
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skb = __hci_cmd_sync(hdev, 0xfc11, 2, param, HCI_CMD_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Exiting manufacturer mode failed (%ld)", |
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PTR_ERR(skb)); |
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return PTR_ERR(skb); |
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} |
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kfree_skb(skb); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_exit_mfg); |
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|
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int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) |
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{ |
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struct sk_buff *skb; |
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int err; |
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|
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skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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err = PTR_ERR(skb); |
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bt_dev_err(hdev, "Changing Intel device address failed (%d)", |
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err); |
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return err; |
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} |
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kfree_skb(skb); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_set_bdaddr); |
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|
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static int btintel_set_event_mask(struct hci_dev *hdev, bool debug) |
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{ |
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u8 mask[8] = { 0x87, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
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struct sk_buff *skb; |
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int err; |
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if (debug) |
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mask[1] |= 0x62; |
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skb = __hci_cmd_sync(hdev, 0xfc52, 8, mask, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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err = PTR_ERR(skb); |
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bt_dev_err(hdev, "Setting Intel event mask failed (%d)", err); |
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return err; |
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} |
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kfree_skb(skb); |
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return 0; |
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} |
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int btintel_set_diag(struct hci_dev *hdev, bool enable) |
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{ |
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struct sk_buff *skb; |
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u8 param[3]; |
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int err; |
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|
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if (enable) { |
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param[0] = 0x03; |
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param[1] = 0x03; |
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param[2] = 0x03; |
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} else { |
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param[0] = 0x00; |
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param[1] = 0x00; |
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param[2] = 0x00; |
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} |
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skb = __hci_cmd_sync(hdev, 0xfc43, 3, param, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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err = PTR_ERR(skb); |
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if (err == -ENODATA) |
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goto done; |
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bt_dev_err(hdev, "Changing Intel diagnostic mode failed (%d)", |
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err); |
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return err; |
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} |
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kfree_skb(skb); |
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|
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done: |
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btintel_set_event_mask(hdev, enable); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_set_diag); |
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static int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable) |
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{ |
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int err, ret; |
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err = btintel_enter_mfg(hdev); |
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if (err) |
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return err; |
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ret = btintel_set_diag(hdev, enable); |
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err = btintel_exit_mfg(hdev, false, false); |
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if (err) |
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return err; |
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return ret; |
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} |
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static int btintel_set_diag_combined(struct hci_dev *hdev, bool enable) |
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{ |
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int ret; |
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|
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/* Legacy ROM device needs to be in the manufacturer mode to apply |
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* diagnostic setting |
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* |
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* This flag is set after reading the Intel version. |
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*/ |
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if (btintel_test_flag(hdev, INTEL_ROM_LEGACY)) |
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ret = btintel_set_diag_mfg(hdev, enable); |
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else |
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ret = btintel_set_diag(hdev, enable); |
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return ret; |
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} |
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static void btintel_hw_error(struct hci_dev *hdev, u8 code) |
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{ |
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struct sk_buff *skb; |
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u8 type = 0x00; |
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bt_dev_err(hdev, "Hardware error 0x%2.2x", code); |
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skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Reset after hardware error failed (%ld)", |
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PTR_ERR(skb)); |
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return; |
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} |
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kfree_skb(skb); |
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skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Retrieving Intel exception info failed (%ld)", |
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PTR_ERR(skb)); |
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return; |
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} |
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if (skb->len != 13) { |
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bt_dev_err(hdev, "Exception info size mismatch"); |
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kfree_skb(skb); |
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return; |
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} |
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bt_dev_err(hdev, "Exception info %s", (char *)(skb->data + 1)); |
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kfree_skb(skb); |
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} |
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|
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int btintel_version_info(struct hci_dev *hdev, struct intel_version *ver) |
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{ |
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const char *variant; |
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|
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/* The hardware platform number has a fixed value of 0x37 and |
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* for now only accept this single value. |
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*/ |
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if (ver->hw_platform != 0x37) { |
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bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", |
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ver->hw_platform); |
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return -EINVAL; |
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} |
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|
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/* Check for supported iBT hardware variants of this firmware |
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* loading method. |
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* |
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* This check has been put in place to ensure correct forward |
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* compatibility options when newer hardware variants come along. |
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*/ |
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switch (ver->hw_variant) { |
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case 0x07: /* WP - Legacy ROM */ |
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case 0x08: /* StP - Legacy ROM */ |
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case 0x0b: /* SfP */ |
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case 0x0c: /* WsP */ |
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case 0x11: /* JfP */ |
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case 0x12: /* ThP */ |
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case 0x13: /* HrP */ |
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case 0x14: /* CcP */ |
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break; |
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default: |
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bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", |
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ver->hw_variant); |
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return -EINVAL; |
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} |
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switch (ver->fw_variant) { |
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case 0x01: |
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variant = "Legacy ROM 2.5"; |
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break; |
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case 0x06: |
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variant = "Bootloader"; |
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break; |
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case 0x22: |
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variant = "Legacy ROM 2.x"; |
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break; |
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case 0x23: |
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variant = "Firmware"; |
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break; |
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default: |
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bt_dev_err(hdev, "Unsupported firmware variant(%02x)", ver->fw_variant); |
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return -EINVAL; |
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} |
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bt_dev_info(hdev, "%s revision %u.%u build %u week %u %u", |
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variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f, |
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ver->fw_build_num, ver->fw_build_ww, |
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2000 + ver->fw_build_yy); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_version_info); |
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static int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen, |
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const void *param) |
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{ |
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while (plen > 0) { |
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struct sk_buff *skb; |
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u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen; |
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cmd_param[0] = fragment_type; |
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memcpy(cmd_param + 1, param, fragment_len); |
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skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1, |
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cmd_param, HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) |
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return PTR_ERR(skb); |
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kfree_skb(skb); |
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plen -= fragment_len; |
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param += fragment_len; |
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} |
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return 0; |
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} |
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int btintel_load_ddc_config(struct hci_dev *hdev, const char *ddc_name) |
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{ |
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const struct firmware *fw; |
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struct sk_buff *skb; |
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const u8 *fw_ptr; |
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int err; |
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err = request_firmware_direct(&fw, ddc_name, &hdev->dev); |
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if (err < 0) { |
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bt_dev_err(hdev, "Failed to load Intel DDC file %s (%d)", |
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ddc_name, err); |
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return err; |
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} |
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bt_dev_info(hdev, "Found Intel DDC parameters: %s", ddc_name); |
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fw_ptr = fw->data; |
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|
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/* DDC file contains one or more DDC structure which has |
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* Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2). |
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*/ |
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while (fw->size > fw_ptr - fw->data) { |
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u8 cmd_plen = fw_ptr[0] + sizeof(u8); |
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|
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skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr, |
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HCI_INIT_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Failed to send Intel_Write_DDC (%ld)", |
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PTR_ERR(skb)); |
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release_firmware(fw); |
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return PTR_ERR(skb); |
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} |
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|
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fw_ptr += cmd_plen; |
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kfree_skb(skb); |
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} |
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release_firmware(fw); |
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bt_dev_info(hdev, "Applying Intel DDC parameters completed"); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_load_ddc_config); |
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int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug) |
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{ |
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int err, ret; |
|
|
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err = btintel_enter_mfg(hdev); |
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if (err) |
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return err; |
|
|
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ret = btintel_set_event_mask(hdev, debug); |
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|
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err = btintel_exit_mfg(hdev, false, false); |
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if (err) |
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return err; |
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|
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btintel_set_event_mask_mfg); |
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|
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int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver) |
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{ |
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struct sk_buff *skb; |
|
|
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skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT); |
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if (IS_ERR(skb)) { |
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bt_dev_err(hdev, "Reading Intel version information failed (%ld)", |
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PTR_ERR(skb)); |
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return PTR_ERR(skb); |
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} |
|
|
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if (skb->len != sizeof(*ver)) { |
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bt_dev_err(hdev, "Intel version event size mismatch"); |
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kfree_skb(skb); |
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return -EILSEQ; |
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} |
|
|
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memcpy(ver, skb->data, sizeof(*ver)); |
|
|
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kfree_skb(skb); |
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|
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btintel_read_version); |
|
|
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static int btintel_version_info_tlv(struct hci_dev *hdev, |
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struct intel_version_tlv *version) |
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{ |
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const char *variant; |
|
|
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/* The hardware platform number has a fixed value of 0x37 and |
|
* for now only accept this single value. |
|
*/ |
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if (INTEL_HW_PLATFORM(version->cnvi_bt) != 0x37) { |
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bt_dev_err(hdev, "Unsupported Intel hardware platform (0x%2x)", |
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INTEL_HW_PLATFORM(version->cnvi_bt)); |
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return -EINVAL; |
|
} |
|
|
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/* Check for supported iBT hardware variants of this firmware |
|
* loading method. |
|
* |
|
* This check has been put in place to ensure correct forward |
|
* compatibility options when newer hardware variants come along. |
|
*/ |
|
switch (INTEL_HW_VARIANT(version->cnvi_bt)) { |
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case 0x17: /* TyP */ |
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case 0x18: /* Slr */ |
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case 0x19: /* Slr-F */ |
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break; |
|
default: |
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bt_dev_err(hdev, "Unsupported Intel hardware variant (0x%x)", |
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INTEL_HW_VARIANT(version->cnvi_bt)); |
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return -EINVAL; |
|
} |
|
|
|
switch (version->img_type) { |
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case 0x01: |
|
variant = "Bootloader"; |
|
/* It is required that every single firmware fragment is acknowledged |
|
* with a command complete event. If the boot parameters indicate |
|
* that this bootloader does not send them, then abort the setup. |
|
*/ |
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if (version->limited_cce != 0x00) { |
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bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)", |
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version->limited_cce); |
|
return -EINVAL; |
|
} |
|
|
|
/* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */ |
|
if (version->sbe_type > 0x01) { |
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bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)", |
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version->sbe_type); |
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return -EINVAL; |
|
} |
|
|
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bt_dev_info(hdev, "Device revision is %u", version->dev_rev_id); |
|
bt_dev_info(hdev, "Secure boot is %s", |
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version->secure_boot ? "enabled" : "disabled"); |
|
bt_dev_info(hdev, "OTP lock is %s", |
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version->otp_lock ? "enabled" : "disabled"); |
|
bt_dev_info(hdev, "API lock is %s", |
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version->api_lock ? "enabled" : "disabled"); |
|
bt_dev_info(hdev, "Debug lock is %s", |
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version->debug_lock ? "enabled" : "disabled"); |
|
bt_dev_info(hdev, "Minimum firmware build %u week %u %u", |
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version->min_fw_build_nn, version->min_fw_build_cw, |
|
2000 + version->min_fw_build_yy); |
|
break; |
|
case 0x03: |
|
variant = "Firmware"; |
|
break; |
|
default: |
|
bt_dev_err(hdev, "Unsupported image type(%02x)", version->img_type); |
|
return -EINVAL; |
|
} |
|
|
|
bt_dev_info(hdev, "%s timestamp %u.%u buildtype %u build %u", variant, |
|
2000 + (version->timestamp >> 8), version->timestamp & 0xff, |
|
version->build_type, version->build_num); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_parse_version_tlv(struct hci_dev *hdev, |
|
struct intel_version_tlv *version, |
|
struct sk_buff *skb) |
|
{ |
|
/* Consume Command Complete Status field */ |
|
skb_pull(skb, 1); |
|
|
|
/* Event parameters contatin multiple TLVs. Read each of them |
|
* and only keep the required data. Also, it use existing legacy |
|
* version field like hw_platform, hw_variant, and fw_variant |
|
* to keep the existing setup flow |
|
*/ |
|
while (skb->len) { |
|
struct intel_tlv *tlv; |
|
|
|
/* Make sure skb has a minimum length of the header */ |
|
if (skb->len < sizeof(*tlv)) |
|
return -EINVAL; |
|
|
|
tlv = (struct intel_tlv *)skb->data; |
|
|
|
/* Make sure skb has a enough data */ |
|
if (skb->len < tlv->len + sizeof(*tlv)) |
|
return -EINVAL; |
|
|
|
switch (tlv->type) { |
|
case INTEL_TLV_CNVI_TOP: |
|
version->cnvi_top = get_unaligned_le32(tlv->val); |
|
break; |
|
case INTEL_TLV_CNVR_TOP: |
|
version->cnvr_top = get_unaligned_le32(tlv->val); |
|
break; |
|
case INTEL_TLV_CNVI_BT: |
|
version->cnvi_bt = get_unaligned_le32(tlv->val); |
|
break; |
|
case INTEL_TLV_CNVR_BT: |
|
version->cnvr_bt = get_unaligned_le32(tlv->val); |
|
break; |
|
case INTEL_TLV_DEV_REV_ID: |
|
version->dev_rev_id = get_unaligned_le16(tlv->val); |
|
break; |
|
case INTEL_TLV_IMAGE_TYPE: |
|
version->img_type = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_TIME_STAMP: |
|
/* If image type is Operational firmware (0x03), then |
|
* running FW Calendar Week and Year information can |
|
* be extracted from Timestamp information |
|
*/ |
|
version->min_fw_build_cw = tlv->val[0]; |
|
version->min_fw_build_yy = tlv->val[1]; |
|
version->timestamp = get_unaligned_le16(tlv->val); |
|
break; |
|
case INTEL_TLV_BUILD_TYPE: |
|
version->build_type = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_BUILD_NUM: |
|
/* If image type is Operational firmware (0x03), then |
|
* running FW build number can be extracted from the |
|
* Build information |
|
*/ |
|
version->min_fw_build_nn = tlv->val[0]; |
|
version->build_num = get_unaligned_le32(tlv->val); |
|
break; |
|
case INTEL_TLV_SECURE_BOOT: |
|
version->secure_boot = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_OTP_LOCK: |
|
version->otp_lock = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_API_LOCK: |
|
version->api_lock = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_DEBUG_LOCK: |
|
version->debug_lock = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_MIN_FW: |
|
version->min_fw_build_nn = tlv->val[0]; |
|
version->min_fw_build_cw = tlv->val[1]; |
|
version->min_fw_build_yy = tlv->val[2]; |
|
break; |
|
case INTEL_TLV_LIMITED_CCE: |
|
version->limited_cce = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_SBE_TYPE: |
|
version->sbe_type = tlv->val[0]; |
|
break; |
|
case INTEL_TLV_OTP_BDADDR: |
|
memcpy(&version->otp_bd_addr, tlv->val, |
|
sizeof(bdaddr_t)); |
|
break; |
|
default: |
|
/* Ignore rest of information */ |
|
break; |
|
} |
|
/* consume the current tlv and move to next*/ |
|
skb_pull(skb, tlv->len + sizeof(*tlv)); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_read_version_tlv(struct hci_dev *hdev, |
|
struct intel_version_tlv *version) |
|
{ |
|
struct sk_buff *skb; |
|
const u8 param[1] = { 0xFF }; |
|
|
|
if (!version) |
|
return -EINVAL; |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Reading Intel version information failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
if (skb->data[0]) { |
|
bt_dev_err(hdev, "Intel Read Version command failed (%02x)", |
|
skb->data[0]); |
|
kfree_skb(skb); |
|
return -EIO; |
|
} |
|
|
|
btintel_parse_version_tlv(hdev, version, skb); |
|
|
|
kfree_skb(skb); |
|
return 0; |
|
} |
|
|
|
/* ------- REGMAP IBT SUPPORT ------- */ |
|
|
|
#define IBT_REG_MODE_8BIT 0x00 |
|
#define IBT_REG_MODE_16BIT 0x01 |
|
#define IBT_REG_MODE_32BIT 0x02 |
|
|
|
struct regmap_ibt_context { |
|
struct hci_dev *hdev; |
|
__u16 op_write; |
|
__u16 op_read; |
|
}; |
|
|
|
struct ibt_cp_reg_access { |
|
__le32 addr; |
|
__u8 mode; |
|
__u8 len; |
|
__u8 data[]; |
|
} __packed; |
|
|
|
struct ibt_rp_reg_access { |
|
__u8 status; |
|
__le32 addr; |
|
__u8 data[]; |
|
} __packed; |
|
|
|
static int regmap_ibt_read(void *context, const void *addr, size_t reg_size, |
|
void *val, size_t val_size) |
|
{ |
|
struct regmap_ibt_context *ctx = context; |
|
struct ibt_cp_reg_access cp; |
|
struct ibt_rp_reg_access *rp; |
|
struct sk_buff *skb; |
|
int err = 0; |
|
|
|
if (reg_size != sizeof(__le32)) |
|
return -EINVAL; |
|
|
|
switch (val_size) { |
|
case 1: |
|
cp.mode = IBT_REG_MODE_8BIT; |
|
break; |
|
case 2: |
|
cp.mode = IBT_REG_MODE_16BIT; |
|
break; |
|
case 4: |
|
cp.mode = IBT_REG_MODE_32BIT; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
/* regmap provides a little-endian formatted addr */ |
|
cp.addr = *(__le32 *)addr; |
|
cp.len = val_size; |
|
|
|
bt_dev_dbg(ctx->hdev, "Register (0x%x) read", le32_to_cpu(cp.addr)); |
|
|
|
skb = hci_cmd_sync(ctx->hdev, ctx->op_read, sizeof(cp), &cp, |
|
HCI_CMD_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
err = PTR_ERR(skb); |
|
bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error (%d)", |
|
le32_to_cpu(cp.addr), err); |
|
return err; |
|
} |
|
|
|
if (skb->len != sizeof(*rp) + val_size) { |
|
bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error, bad len", |
|
le32_to_cpu(cp.addr)); |
|
err = -EINVAL; |
|
goto done; |
|
} |
|
|
|
rp = (struct ibt_rp_reg_access *)skb->data; |
|
|
|
if (rp->addr != cp.addr) { |
|
bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error, bad addr", |
|
le32_to_cpu(rp->addr)); |
|
err = -EINVAL; |
|
goto done; |
|
} |
|
|
|
memcpy(val, rp->data, val_size); |
|
|
|
done: |
|
kfree_skb(skb); |
|
return err; |
|
} |
|
|
|
static int regmap_ibt_gather_write(void *context, |
|
const void *addr, size_t reg_size, |
|
const void *val, size_t val_size) |
|
{ |
|
struct regmap_ibt_context *ctx = context; |
|
struct ibt_cp_reg_access *cp; |
|
struct sk_buff *skb; |
|
int plen = sizeof(*cp) + val_size; |
|
u8 mode; |
|
int err = 0; |
|
|
|
if (reg_size != sizeof(__le32)) |
|
return -EINVAL; |
|
|
|
switch (val_size) { |
|
case 1: |
|
mode = IBT_REG_MODE_8BIT; |
|
break; |
|
case 2: |
|
mode = IBT_REG_MODE_16BIT; |
|
break; |
|
case 4: |
|
mode = IBT_REG_MODE_32BIT; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
cp = kmalloc(plen, GFP_KERNEL); |
|
if (!cp) |
|
return -ENOMEM; |
|
|
|
/* regmap provides a little-endian formatted addr/value */ |
|
cp->addr = *(__le32 *)addr; |
|
cp->mode = mode; |
|
cp->len = val_size; |
|
memcpy(&cp->data, val, val_size); |
|
|
|
bt_dev_dbg(ctx->hdev, "Register (0x%x) write", le32_to_cpu(cp->addr)); |
|
|
|
skb = hci_cmd_sync(ctx->hdev, ctx->op_write, plen, cp, HCI_CMD_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
err = PTR_ERR(skb); |
|
bt_dev_err(ctx->hdev, "regmap: Register (0x%x) write error (%d)", |
|
le32_to_cpu(cp->addr), err); |
|
goto done; |
|
} |
|
kfree_skb(skb); |
|
|
|
done: |
|
kfree(cp); |
|
return err; |
|
} |
|
|
|
static int regmap_ibt_write(void *context, const void *data, size_t count) |
|
{ |
|
/* data contains register+value, since we only support 32bit addr, |
|
* minimum data size is 4 bytes. |
|
*/ |
|
if (WARN_ONCE(count < 4, "Invalid register access")) |
|
return -EINVAL; |
|
|
|
return regmap_ibt_gather_write(context, data, 4, data + 4, count - 4); |
|
} |
|
|
|
static void regmap_ibt_free_context(void *context) |
|
{ |
|
kfree(context); |
|
} |
|
|
|
static struct regmap_bus regmap_ibt = { |
|
.read = regmap_ibt_read, |
|
.write = regmap_ibt_write, |
|
.gather_write = regmap_ibt_gather_write, |
|
.free_context = regmap_ibt_free_context, |
|
.reg_format_endian_default = REGMAP_ENDIAN_LITTLE, |
|
.val_format_endian_default = REGMAP_ENDIAN_LITTLE, |
|
}; |
|
|
|
/* Config is the same for all register regions */ |
|
static const struct regmap_config regmap_ibt_cfg = { |
|
.name = "btintel_regmap", |
|
.reg_bits = 32, |
|
.val_bits = 32, |
|
}; |
|
|
|
struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read, |
|
u16 opcode_write) |
|
{ |
|
struct regmap_ibt_context *ctx; |
|
|
|
bt_dev_info(hdev, "regmap: Init R%x-W%x region", opcode_read, |
|
opcode_write); |
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
|
if (!ctx) |
|
return ERR_PTR(-ENOMEM); |
|
|
|
ctx->op_read = opcode_read; |
|
ctx->op_write = opcode_write; |
|
ctx->hdev = hdev; |
|
|
|
return regmap_init(&hdev->dev, ®map_ibt, ctx, ®map_ibt_cfg); |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_regmap_init); |
|
|
|
int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param) |
|
{ |
|
struct intel_reset params = { 0x00, 0x01, 0x00, 0x01, 0x00000000 }; |
|
struct sk_buff *skb; |
|
|
|
params.boot_param = cpu_to_le32(boot_param); |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params), ¶ms, |
|
HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Failed to send Intel Reset command"); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
kfree_skb(skb); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_send_intel_reset); |
|
|
|
int btintel_read_boot_params(struct hci_dev *hdev, |
|
struct intel_boot_params *params) |
|
{ |
|
struct sk_buff *skb; |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
if (skb->len != sizeof(*params)) { |
|
bt_dev_err(hdev, "Intel boot parameters size mismatch"); |
|
kfree_skb(skb); |
|
return -EILSEQ; |
|
} |
|
|
|
memcpy(params, skb->data, sizeof(*params)); |
|
|
|
kfree_skb(skb); |
|
|
|
if (params->status) { |
|
bt_dev_err(hdev, "Intel boot parameters command failed (%02x)", |
|
params->status); |
|
return -bt_to_errno(params->status); |
|
} |
|
|
|
bt_dev_info(hdev, "Device revision is %u", |
|
le16_to_cpu(params->dev_revid)); |
|
|
|
bt_dev_info(hdev, "Secure boot is %s", |
|
params->secure_boot ? "enabled" : "disabled"); |
|
|
|
bt_dev_info(hdev, "OTP lock is %s", |
|
params->otp_lock ? "enabled" : "disabled"); |
|
|
|
bt_dev_info(hdev, "API lock is %s", |
|
params->api_lock ? "enabled" : "disabled"); |
|
|
|
bt_dev_info(hdev, "Debug lock is %s", |
|
params->debug_lock ? "enabled" : "disabled"); |
|
|
|
bt_dev_info(hdev, "Minimum firmware build %u week %u %u", |
|
params->min_fw_build_nn, params->min_fw_build_cw, |
|
2000 + params->min_fw_build_yy); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_read_boot_params); |
|
|
|
static int btintel_sfi_rsa_header_secure_send(struct hci_dev *hdev, |
|
const struct firmware *fw) |
|
{ |
|
int err; |
|
|
|
/* Start the firmware download transaction with the Init fragment |
|
* represented by the 128 bytes of CSS header. |
|
*/ |
|
err = btintel_secure_send(hdev, 0x00, 128, fw->data); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware header (%d)", err); |
|
goto done; |
|
} |
|
|
|
/* Send the 256 bytes of public key information from the firmware |
|
* as the PKey fragment. |
|
*/ |
|
err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err); |
|
goto done; |
|
} |
|
|
|
/* Send the 256 bytes of signature information from the firmware |
|
* as the Sign fragment. |
|
*/ |
|
err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware signature (%d)", err); |
|
goto done; |
|
} |
|
|
|
done: |
|
return err; |
|
} |
|
|
|
static int btintel_sfi_ecdsa_header_secure_send(struct hci_dev *hdev, |
|
const struct firmware *fw) |
|
{ |
|
int err; |
|
|
|
/* Start the firmware download transaction with the Init fragment |
|
* represented by the 128 bytes of CSS header. |
|
*/ |
|
err = btintel_secure_send(hdev, 0x00, 128, fw->data + 644); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware header (%d)", err); |
|
return err; |
|
} |
|
|
|
/* Send the 96 bytes of public key information from the firmware |
|
* as the PKey fragment. |
|
*/ |
|
err = btintel_secure_send(hdev, 0x03, 96, fw->data + 644 + 128); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err); |
|
return err; |
|
} |
|
|
|
/* Send the 96 bytes of signature information from the firmware |
|
* as the Sign fragment |
|
*/ |
|
err = btintel_secure_send(hdev, 0x02, 96, fw->data + 644 + 224); |
|
if (err < 0) { |
|
bt_dev_err(hdev, "Failed to send firmware signature (%d)", |
|
err); |
|
return err; |
|
} |
|
return 0; |
|
} |
|
|
|
static int btintel_download_firmware_payload(struct hci_dev *hdev, |
|
const struct firmware *fw, |
|
size_t offset) |
|
{ |
|
int err; |
|
const u8 *fw_ptr; |
|
u32 frag_len; |
|
|
|
fw_ptr = fw->data + offset; |
|
frag_len = 0; |
|
err = -EINVAL; |
|
|
|
while (fw_ptr - fw->data < fw->size) { |
|
struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); |
|
|
|
frag_len += sizeof(*cmd) + cmd->plen; |
|
|
|
/* The parameter length of the secure send command requires |
|
* a 4 byte alignment. It happens so that the firmware file |
|
* contains proper Intel_NOP commands to align the fragments |
|
* as needed. |
|
* |
|
* Send set of commands with 4 byte alignment from the |
|
* firmware data buffer as a single Data fragement. |
|
*/ |
|
if (!(frag_len % 4)) { |
|
err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); |
|
if (err < 0) { |
|
bt_dev_err(hdev, |
|
"Failed to send firmware data (%d)", |
|
err); |
|
goto done; |
|
} |
|
|
|
fw_ptr += frag_len; |
|
frag_len = 0; |
|
} |
|
} |
|
|
|
done: |
|
return err; |
|
} |
|
|
|
static bool btintel_firmware_version(struct hci_dev *hdev, |
|
u8 num, u8 ww, u8 yy, |
|
const struct firmware *fw, |
|
u32 *boot_addr) |
|
{ |
|
const u8 *fw_ptr; |
|
|
|
fw_ptr = fw->data; |
|
|
|
while (fw_ptr - fw->data < fw->size) { |
|
struct hci_command_hdr *cmd = (void *)(fw_ptr); |
|
|
|
/* Each SKU has a different reset parameter to use in the |
|
* HCI_Intel_Reset command and it is embedded in the firmware |
|
* data. So, instead of using static value per SKU, check |
|
* the firmware data and save it for later use. |
|
*/ |
|
if (le16_to_cpu(cmd->opcode) == CMD_WRITE_BOOT_PARAMS) { |
|
struct cmd_write_boot_params *params; |
|
|
|
params = (void *)(fw_ptr + sizeof(*cmd)); |
|
|
|
*boot_addr = le32_to_cpu(params->boot_addr); |
|
|
|
bt_dev_info(hdev, "Boot Address: 0x%x", *boot_addr); |
|
|
|
bt_dev_info(hdev, "Firmware Version: %u-%u.%u", |
|
params->fw_build_num, params->fw_build_ww, |
|
params->fw_build_yy); |
|
|
|
return (num == params->fw_build_num && |
|
ww == params->fw_build_ww && |
|
yy == params->fw_build_yy); |
|
} |
|
|
|
fw_ptr += sizeof(*cmd) + cmd->plen; |
|
} |
|
|
|
return false; |
|
} |
|
|
|
int btintel_download_firmware(struct hci_dev *hdev, |
|
struct intel_version *ver, |
|
const struct firmware *fw, |
|
u32 *boot_param) |
|
{ |
|
int err; |
|
|
|
/* SfP and WsP don't seem to update the firmware version on file |
|
* so version checking is currently not possible. |
|
*/ |
|
switch (ver->hw_variant) { |
|
case 0x0b: /* SfP */ |
|
case 0x0c: /* WsP */ |
|
/* Skip version checking */ |
|
break; |
|
default: |
|
|
|
/* Skip download if firmware has the same version */ |
|
if (btintel_firmware_version(hdev, ver->fw_build_num, |
|
ver->fw_build_ww, ver->fw_build_yy, |
|
fw, boot_param)) { |
|
bt_dev_info(hdev, "Firmware already loaded"); |
|
/* Return -EALREADY to indicate that the firmware has |
|
* already been loaded. |
|
*/ |
|
return -EALREADY; |
|
} |
|
} |
|
|
|
/* The firmware variant determines if the device is in bootloader |
|
* mode or is running operational firmware. The value 0x06 identifies |
|
* the bootloader and the value 0x23 identifies the operational |
|
* firmware. |
|
* |
|
* If the firmware version has changed that means it needs to be reset |
|
* to bootloader when operational so the new firmware can be loaded. |
|
*/ |
|
if (ver->fw_variant == 0x23) |
|
return -EINVAL; |
|
|
|
err = btintel_sfi_rsa_header_secure_send(hdev, fw); |
|
if (err) |
|
return err; |
|
|
|
return btintel_download_firmware_payload(hdev, fw, RSA_HEADER_LEN); |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_download_firmware); |
|
|
|
static int btintel_download_fw_tlv(struct hci_dev *hdev, |
|
struct intel_version_tlv *ver, |
|
const struct firmware *fw, u32 *boot_param, |
|
u8 hw_variant, u8 sbe_type) |
|
{ |
|
int err; |
|
u32 css_header_ver; |
|
|
|
/* Skip download if firmware has the same version */ |
|
if (btintel_firmware_version(hdev, ver->min_fw_build_nn, |
|
ver->min_fw_build_cw, |
|
ver->min_fw_build_yy, |
|
fw, boot_param)) { |
|
bt_dev_info(hdev, "Firmware already loaded"); |
|
/* Return -EALREADY to indicate that firmware has |
|
* already been loaded. |
|
*/ |
|
return -EALREADY; |
|
} |
|
|
|
/* The firmware variant determines if the device is in bootloader |
|
* mode or is running operational firmware. The value 0x01 identifies |
|
* the bootloader and the value 0x03 identifies the operational |
|
* firmware. |
|
* |
|
* If the firmware version has changed that means it needs to be reset |
|
* to bootloader when operational so the new firmware can be loaded. |
|
*/ |
|
if (ver->img_type == 0x03) |
|
return -EINVAL; |
|
|
|
/* iBT hardware variants 0x0b, 0x0c, 0x11, 0x12, 0x13, 0x14 support |
|
* only RSA secure boot engine. Hence, the corresponding sfi file will |
|
* have RSA header of 644 bytes followed by Command Buffer. |
|
* |
|
* iBT hardware variants 0x17, 0x18 onwards support both RSA and ECDSA |
|
* secure boot engine. As a result, the corresponding sfi file will |
|
* have RSA header of 644, ECDSA header of 320 bytes followed by |
|
* Command Buffer. |
|
* |
|
* CSS Header byte positions 0x08 to 0x0B represent the CSS Header |
|
* version: RSA(0x00010000) , ECDSA (0x00020000) |
|
*/ |
|
css_header_ver = get_unaligned_le32(fw->data + CSS_HEADER_OFFSET); |
|
if (css_header_ver != 0x00010000) { |
|
bt_dev_err(hdev, "Invalid CSS Header version"); |
|
return -EINVAL; |
|
} |
|
|
|
if (hw_variant <= 0x14) { |
|
if (sbe_type != 0x00) { |
|
bt_dev_err(hdev, "Invalid SBE type for hardware variant (%d)", |
|
hw_variant); |
|
return -EINVAL; |
|
} |
|
|
|
err = btintel_sfi_rsa_header_secure_send(hdev, fw); |
|
if (err) |
|
return err; |
|
|
|
err = btintel_download_firmware_payload(hdev, fw, RSA_HEADER_LEN); |
|
if (err) |
|
return err; |
|
} else if (hw_variant >= 0x17) { |
|
/* Check if CSS header for ECDSA follows the RSA header */ |
|
if (fw->data[ECDSA_OFFSET] != 0x06) |
|
return -EINVAL; |
|
|
|
/* Check if the CSS Header version is ECDSA(0x00020000) */ |
|
css_header_ver = get_unaligned_le32(fw->data + ECDSA_OFFSET + CSS_HEADER_OFFSET); |
|
if (css_header_ver != 0x00020000) { |
|
bt_dev_err(hdev, "Invalid CSS Header version"); |
|
return -EINVAL; |
|
} |
|
|
|
if (sbe_type == 0x00) { |
|
err = btintel_sfi_rsa_header_secure_send(hdev, fw); |
|
if (err) |
|
return err; |
|
|
|
err = btintel_download_firmware_payload(hdev, fw, |
|
RSA_HEADER_LEN + ECDSA_HEADER_LEN); |
|
if (err) |
|
return err; |
|
} else if (sbe_type == 0x01) { |
|
err = btintel_sfi_ecdsa_header_secure_send(hdev, fw); |
|
if (err) |
|
return err; |
|
|
|
err = btintel_download_firmware_payload(hdev, fw, |
|
RSA_HEADER_LEN + ECDSA_HEADER_LEN); |
|
if (err) |
|
return err; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static void btintel_reset_to_bootloader(struct hci_dev *hdev) |
|
{ |
|
struct intel_reset params; |
|
struct sk_buff *skb; |
|
|
|
/* Send Intel Reset command. This will result in |
|
* re-enumeration of BT controller. |
|
* |
|
* Intel Reset parameter description: |
|
* reset_type : 0x00 (Soft reset), |
|
* 0x01 (Hard reset) |
|
* patch_enable : 0x00 (Do not enable), |
|
* 0x01 (Enable) |
|
* ddc_reload : 0x00 (Do not reload), |
|
* 0x01 (Reload) |
|
* boot_option: 0x00 (Current image), |
|
* 0x01 (Specified boot address) |
|
* boot_param: Boot address |
|
* |
|
*/ |
|
params.reset_type = 0x01; |
|
params.patch_enable = 0x01; |
|
params.ddc_reload = 0x01; |
|
params.boot_option = 0x00; |
|
params.boot_param = cpu_to_le32(0x00000000); |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params), |
|
¶ms, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "FW download error recovery failed (%ld)", |
|
PTR_ERR(skb)); |
|
return; |
|
} |
|
bt_dev_info(hdev, "Intel reset sent to retry FW download"); |
|
kfree_skb(skb); |
|
|
|
/* Current Intel BT controllers(ThP/JfP) hold the USB reset |
|
* lines for 2ms when it receives Intel Reset in bootloader mode. |
|
* Whereas, the upcoming Intel BT controllers will hold USB reset |
|
* for 150ms. To keep the delay generic, 150ms is chosen here. |
|
*/ |
|
msleep(150); |
|
} |
|
|
|
static int btintel_read_debug_features(struct hci_dev *hdev, |
|
struct intel_debug_features *features) |
|
{ |
|
struct sk_buff *skb; |
|
u8 page_no = 1; |
|
|
|
/* Intel controller supports two pages, each page is of 128-bit |
|
* feature bit mask. And each bit defines specific feature support |
|
*/ |
|
skb = __hci_cmd_sync(hdev, 0xfca6, sizeof(page_no), &page_no, |
|
HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Reading supported features failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
if (skb->len != (sizeof(features->page1) + 3)) { |
|
bt_dev_err(hdev, "Supported features event size mismatch"); |
|
kfree_skb(skb); |
|
return -EILSEQ; |
|
} |
|
|
|
memcpy(features->page1, skb->data + 3, sizeof(features->page1)); |
|
|
|
/* Read the supported features page2 if required in future. |
|
*/ |
|
kfree_skb(skb); |
|
return 0; |
|
} |
|
|
|
static int btintel_set_debug_features(struct hci_dev *hdev, |
|
const struct intel_debug_features *features) |
|
{ |
|
u8 mask[11] = { 0x0a, 0x92, 0x02, 0x7f, 0x00, 0x00, 0x00, 0x00, |
|
0x00, 0x00, 0x00 }; |
|
u8 period[5] = { 0x04, 0x91, 0x02, 0x05, 0x00 }; |
|
u8 trace_enable = 0x02; |
|
struct sk_buff *skb; |
|
|
|
if (!features) { |
|
bt_dev_warn(hdev, "Debug features not read"); |
|
return -EINVAL; |
|
} |
|
|
|
if (!(features->page1[0] & 0x3f)) { |
|
bt_dev_info(hdev, "Telemetry exception format not supported"); |
|
return 0; |
|
} |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc8b, 11, mask, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Setting Intel telemetry ddc write event mask failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc8b, 5, period, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Setting periodicity for link statistics traces failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfca1, 1, &trace_enable, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Enable tracing of link statistics events failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
bt_dev_info(hdev, "set debug features: trace_enable 0x%02x mask 0x%02x", |
|
trace_enable, mask[3]); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_reset_debug_features(struct hci_dev *hdev, |
|
const struct intel_debug_features *features) |
|
{ |
|
u8 mask[11] = { 0x0a, 0x92, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, |
|
0x00, 0x00, 0x00 }; |
|
u8 trace_enable = 0x00; |
|
struct sk_buff *skb; |
|
|
|
if (!features) { |
|
bt_dev_warn(hdev, "Debug features not read"); |
|
return -EINVAL; |
|
} |
|
|
|
if (!(features->page1[0] & 0x3f)) { |
|
bt_dev_info(hdev, "Telemetry exception format not supported"); |
|
return 0; |
|
} |
|
|
|
/* Should stop the trace before writing ddc event mask. */ |
|
skb = __hci_cmd_sync(hdev, 0xfca1, 1, &trace_enable, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Stop tracing of link statistics events failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc8b, 11, mask, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Setting Intel telemetry ddc write event mask failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
bt_dev_info(hdev, "reset debug features: trace_enable 0x%02x mask 0x%02x", |
|
trace_enable, mask[3]); |
|
|
|
return 0; |
|
} |
|
|
|
int btintel_set_quality_report(struct hci_dev *hdev, bool enable) |
|
{ |
|
struct intel_debug_features features; |
|
int err; |
|
|
|
bt_dev_dbg(hdev, "enable %d", enable); |
|
|
|
/* Read the Intel supported features and if new exception formats |
|
* supported, need to load the additional DDC config to enable. |
|
*/ |
|
err = btintel_read_debug_features(hdev, &features); |
|
if (err) |
|
return err; |
|
|
|
/* Set or reset the debug features. */ |
|
if (enable) |
|
err = btintel_set_debug_features(hdev, &features); |
|
else |
|
err = btintel_reset_debug_features(hdev, &features); |
|
|
|
return err; |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_set_quality_report); |
|
|
|
static const struct firmware *btintel_legacy_rom_get_fw(struct hci_dev *hdev, |
|
struct intel_version *ver) |
|
{ |
|
const struct firmware *fw; |
|
char fwname[64]; |
|
int ret; |
|
|
|
snprintf(fwname, sizeof(fwname), |
|
"intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", |
|
ver->hw_platform, ver->hw_variant, ver->hw_revision, |
|
ver->fw_variant, ver->fw_revision, ver->fw_build_num, |
|
ver->fw_build_ww, ver->fw_build_yy); |
|
|
|
ret = request_firmware(&fw, fwname, &hdev->dev); |
|
if (ret < 0) { |
|
if (ret == -EINVAL) { |
|
bt_dev_err(hdev, "Intel firmware file request failed (%d)", |
|
ret); |
|
return NULL; |
|
} |
|
|
|
bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", |
|
fwname, ret); |
|
|
|
/* If the correct firmware patch file is not found, use the |
|
* default firmware patch file instead |
|
*/ |
|
snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", |
|
ver->hw_platform, ver->hw_variant); |
|
if (request_firmware(&fw, fwname, &hdev->dev) < 0) { |
|
bt_dev_err(hdev, "failed to open default fw file: %s", |
|
fwname); |
|
return NULL; |
|
} |
|
} |
|
|
|
bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); |
|
|
|
return fw; |
|
} |
|
|
|
static int btintel_legacy_rom_patching(struct hci_dev *hdev, |
|
const struct firmware *fw, |
|
const u8 **fw_ptr, int *disable_patch) |
|
{ |
|
struct sk_buff *skb; |
|
struct hci_command_hdr *cmd; |
|
const u8 *cmd_param; |
|
struct hci_event_hdr *evt = NULL; |
|
const u8 *evt_param = NULL; |
|
int remain = fw->size - (*fw_ptr - fw->data); |
|
|
|
/* The first byte indicates the types of the patch command or event. |
|
* 0x01 means HCI command and 0x02 is HCI event. If the first bytes |
|
* in the current firmware buffer doesn't start with 0x01 or |
|
* the size of remain buffer is smaller than HCI command header, |
|
* the firmware file is corrupted and it should stop the patching |
|
* process. |
|
*/ |
|
if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { |
|
bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); |
|
return -EINVAL; |
|
} |
|
(*fw_ptr)++; |
|
remain--; |
|
|
|
cmd = (struct hci_command_hdr *)(*fw_ptr); |
|
*fw_ptr += sizeof(*cmd); |
|
remain -= sizeof(*cmd); |
|
|
|
/* Ensure that the remain firmware data is long enough than the length |
|
* of command parameter. If not, the firmware file is corrupted. |
|
*/ |
|
if (remain < cmd->plen) { |
|
bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); |
|
return -EFAULT; |
|
} |
|
|
|
/* If there is a command that loads a patch in the firmware |
|
* file, then enable the patch upon success, otherwise just |
|
* disable the manufacturer mode, for example patch activation |
|
* is not required when the default firmware patch file is used |
|
* because there are no patch data to load. |
|
*/ |
|
if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) |
|
*disable_patch = 0; |
|
|
|
cmd_param = *fw_ptr; |
|
*fw_ptr += cmd->plen; |
|
remain -= cmd->plen; |
|
|
|
/* This reads the expected events when the above command is sent to the |
|
* device. Some vendor commands expects more than one events, for |
|
* example command status event followed by vendor specific event. |
|
* For this case, it only keeps the last expected event. so the command |
|
* can be sent with __hci_cmd_sync_ev() which returns the sk_buff of |
|
* last expected event. |
|
*/ |
|
while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { |
|
(*fw_ptr)++; |
|
remain--; |
|
|
|
evt = (struct hci_event_hdr *)(*fw_ptr); |
|
*fw_ptr += sizeof(*evt); |
|
remain -= sizeof(*evt); |
|
|
|
if (remain < evt->plen) { |
|
bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); |
|
return -EFAULT; |
|
} |
|
|
|
evt_param = *fw_ptr; |
|
*fw_ptr += evt->plen; |
|
remain -= evt->plen; |
|
} |
|
|
|
/* Every HCI commands in the firmware file has its correspond event. |
|
* If event is not found or remain is smaller than zero, the firmware |
|
* file is corrupted. |
|
*/ |
|
if (!evt || !evt_param || remain < 0) { |
|
bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); |
|
return -EFAULT; |
|
} |
|
|
|
skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, |
|
cmd_param, evt->evt, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", |
|
cmd->opcode, PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
/* It ensures that the returned event matches the event data read from |
|
* the firmware file. At fist, it checks the length and then |
|
* the contents of the event. |
|
*/ |
|
if (skb->len != evt->plen) { |
|
bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", |
|
le16_to_cpu(cmd->opcode)); |
|
kfree_skb(skb); |
|
return -EFAULT; |
|
} |
|
|
|
if (memcmp(skb->data, evt_param, evt->plen)) { |
|
bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", |
|
le16_to_cpu(cmd->opcode)); |
|
kfree_skb(skb); |
|
return -EFAULT; |
|
} |
|
kfree_skb(skb); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_legacy_rom_setup(struct hci_dev *hdev, |
|
struct intel_version *ver) |
|
{ |
|
const struct firmware *fw; |
|
const u8 *fw_ptr; |
|
int disable_patch, err; |
|
struct intel_version new_ver; |
|
|
|
BT_DBG("%s", hdev->name); |
|
|
|
/* fw_patch_num indicates the version of patch the device currently |
|
* have. If there is no patch data in the device, it is always 0x00. |
|
* So, if it is other than 0x00, no need to patch the device again. |
|
*/ |
|
if (ver->fw_patch_num) { |
|
bt_dev_info(hdev, |
|
"Intel device is already patched. patch num: %02x", |
|
ver->fw_patch_num); |
|
goto complete; |
|
} |
|
|
|
/* Opens the firmware patch file based on the firmware version read |
|
* from the controller. If it fails to open the matching firmware |
|
* patch file, it tries to open the default firmware patch file. |
|
* If no patch file is found, allow the device to operate without |
|
* a patch. |
|
*/ |
|
fw = btintel_legacy_rom_get_fw(hdev, ver); |
|
if (!fw) |
|
goto complete; |
|
fw_ptr = fw->data; |
|
|
|
/* Enable the manufacturer mode of the controller. |
|
* Only while this mode is enabled, the driver can download the |
|
* firmware patch data and configuration parameters. |
|
*/ |
|
err = btintel_enter_mfg(hdev); |
|
if (err) { |
|
release_firmware(fw); |
|
return err; |
|
} |
|
|
|
disable_patch = 1; |
|
|
|
/* The firmware data file consists of list of Intel specific HCI |
|
* commands and its expected events. The first byte indicates the |
|
* type of the message, either HCI command or HCI event. |
|
* |
|
* It reads the command and its expected event from the firmware file, |
|
* and send to the controller. Once __hci_cmd_sync_ev() returns, |
|
* the returned event is compared with the event read from the firmware |
|
* file and it will continue until all the messages are downloaded to |
|
* the controller. |
|
* |
|
* Once the firmware patching is completed successfully, |
|
* the manufacturer mode is disabled with reset and activating the |
|
* downloaded patch. |
|
* |
|
* If the firmware patching fails, the manufacturer mode is |
|
* disabled with reset and deactivating the patch. |
|
* |
|
* If the default patch file is used, no reset is done when disabling |
|
* the manufacturer. |
|
*/ |
|
while (fw->size > fw_ptr - fw->data) { |
|
int ret; |
|
|
|
ret = btintel_legacy_rom_patching(hdev, fw, &fw_ptr, |
|
&disable_patch); |
|
if (ret < 0) |
|
goto exit_mfg_deactivate; |
|
} |
|
|
|
release_firmware(fw); |
|
|
|
if (disable_patch) |
|
goto exit_mfg_disable; |
|
|
|
/* Patching completed successfully and disable the manufacturer mode |
|
* with reset and activate the downloaded firmware patches. |
|
*/ |
|
err = btintel_exit_mfg(hdev, true, true); |
|
if (err) |
|
return err; |
|
|
|
/* Need build number for downloaded fw patches in |
|
* every power-on boot |
|
*/ |
|
err = btintel_read_version(hdev, &new_ver); |
|
if (err) |
|
return err; |
|
|
|
bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated", |
|
new_ver.fw_patch_num); |
|
|
|
goto complete; |
|
|
|
exit_mfg_disable: |
|
/* Disable the manufacturer mode without reset */ |
|
err = btintel_exit_mfg(hdev, false, false); |
|
if (err) |
|
return err; |
|
|
|
bt_dev_info(hdev, "Intel firmware patch completed"); |
|
|
|
goto complete; |
|
|
|
exit_mfg_deactivate: |
|
release_firmware(fw); |
|
|
|
/* Patching failed. Disable the manufacturer mode with reset and |
|
* deactivate the downloaded firmware patches. |
|
*/ |
|
err = btintel_exit_mfg(hdev, true, false); |
|
if (err) |
|
return err; |
|
|
|
bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); |
|
|
|
complete: |
|
/* Set the event mask for Intel specific vendor events. This enables |
|
* a few extra events that are useful during general operation. |
|
*/ |
|
btintel_set_event_mask_mfg(hdev, false); |
|
|
|
btintel_check_bdaddr(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_download_wait(struct hci_dev *hdev, ktime_t calltime, int msec) |
|
{ |
|
ktime_t delta, rettime; |
|
unsigned long long duration; |
|
int err; |
|
|
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
|
|
bt_dev_info(hdev, "Waiting for firmware download to complete"); |
|
|
|
err = btintel_wait_on_flag_timeout(hdev, INTEL_DOWNLOADING, |
|
TASK_INTERRUPTIBLE, |
|
msecs_to_jiffies(msec)); |
|
if (err == -EINTR) { |
|
bt_dev_err(hdev, "Firmware loading interrupted"); |
|
return err; |
|
} |
|
|
|
if (err) { |
|
bt_dev_err(hdev, "Firmware loading timeout"); |
|
return -ETIMEDOUT; |
|
} |
|
|
|
if (btintel_test_flag(hdev, INTEL_FIRMWARE_FAILED)) { |
|
bt_dev_err(hdev, "Firmware loading failed"); |
|
return -ENOEXEC; |
|
} |
|
|
|
rettime = ktime_get(); |
|
delta = ktime_sub(rettime, calltime); |
|
duration = (unsigned long long)ktime_to_ns(delta) >> 10; |
|
|
|
bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_boot_wait(struct hci_dev *hdev, ktime_t calltime, int msec) |
|
{ |
|
ktime_t delta, rettime; |
|
unsigned long long duration; |
|
int err; |
|
|
|
bt_dev_info(hdev, "Waiting for device to boot"); |
|
|
|
err = btintel_wait_on_flag_timeout(hdev, INTEL_BOOTING, |
|
TASK_INTERRUPTIBLE, |
|
msecs_to_jiffies(msec)); |
|
if (err == -EINTR) { |
|
bt_dev_err(hdev, "Device boot interrupted"); |
|
return -EINTR; |
|
} |
|
|
|
if (err) { |
|
bt_dev_err(hdev, "Device boot timeout"); |
|
return -ETIMEDOUT; |
|
} |
|
|
|
rettime = ktime_get(); |
|
delta = ktime_sub(rettime, calltime); |
|
duration = (unsigned long long) ktime_to_ns(delta) >> 10; |
|
|
|
bt_dev_info(hdev, "Device booted in %llu usecs", duration); |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_boot(struct hci_dev *hdev, u32 boot_addr) |
|
{ |
|
ktime_t calltime; |
|
int err; |
|
|
|
calltime = ktime_get(); |
|
|
|
btintel_set_flag(hdev, INTEL_BOOTING); |
|
|
|
err = btintel_send_intel_reset(hdev, boot_addr); |
|
if (err) { |
|
bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err); |
|
btintel_reset_to_bootloader(hdev); |
|
return err; |
|
} |
|
|
|
/* The bootloader will not indicate when the device is ready. This |
|
* is done by the operational firmware sending bootup notification. |
|
* |
|
* Booting into operational firmware should not take longer than |
|
* 1 second. However if that happens, then just fail the setup |
|
* since something went wrong. |
|
*/ |
|
err = btintel_boot_wait(hdev, calltime, 1000); |
|
if (err == -ETIMEDOUT) |
|
btintel_reset_to_bootloader(hdev); |
|
|
|
return err; |
|
} |
|
|
|
static int btintel_get_fw_name(struct intel_version *ver, |
|
struct intel_boot_params *params, |
|
char *fw_name, size_t len, |
|
const char *suffix) |
|
{ |
|
switch (ver->hw_variant) { |
|
case 0x0b: /* SfP */ |
|
case 0x0c: /* WsP */ |
|
snprintf(fw_name, len, "intel/ibt-%u-%u.%s", |
|
le16_to_cpu(ver->hw_variant), |
|
le16_to_cpu(params->dev_revid), |
|
suffix); |
|
break; |
|
case 0x11: /* JfP */ |
|
case 0x12: /* ThP */ |
|
case 0x13: /* HrP */ |
|
case 0x14: /* CcP */ |
|
snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", |
|
le16_to_cpu(ver->hw_variant), |
|
le16_to_cpu(ver->hw_revision), |
|
le16_to_cpu(ver->fw_revision), |
|
suffix); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int btintel_download_fw(struct hci_dev *hdev, |
|
struct intel_version *ver, |
|
struct intel_boot_params *params, |
|
u32 *boot_param) |
|
{ |
|
const struct firmware *fw; |
|
char fwname[64]; |
|
int err; |
|
ktime_t calltime; |
|
|
|
if (!ver || !params) |
|
return -EINVAL; |
|
|
|
/* The firmware variant determines if the device is in bootloader |
|
* mode or is running operational firmware. The value 0x06 identifies |
|
* the bootloader and the value 0x23 identifies the operational |
|
* firmware. |
|
* |
|
* When the operational firmware is already present, then only |
|
* the check for valid Bluetooth device address is needed. This |
|
* determines if the device will be added as configured or |
|
* unconfigured controller. |
|
* |
|
* It is not possible to use the Secure Boot Parameters in this |
|
* case since that command is only available in bootloader mode. |
|
*/ |
|
if (ver->fw_variant == 0x23) { |
|
btintel_clear_flag(hdev, INTEL_BOOTLOADER); |
|
btintel_check_bdaddr(hdev); |
|
|
|
/* SfP and WsP don't seem to update the firmware version on file |
|
* so version checking is currently possible. |
|
*/ |
|
switch (ver->hw_variant) { |
|
case 0x0b: /* SfP */ |
|
case 0x0c: /* WsP */ |
|
return 0; |
|
} |
|
|
|
/* Proceed to download to check if the version matches */ |
|
goto download; |
|
} |
|
|
|
/* Read the secure boot parameters to identify the operating |
|
* details of the bootloader. |
|
*/ |
|
err = btintel_read_boot_params(hdev, params); |
|
if (err) |
|
return err; |
|
|
|
/* It is required that every single firmware fragment is acknowledged |
|
* with a command complete event. If the boot parameters indicate |
|
* that this bootloader does not send them, then abort the setup. |
|
*/ |
|
if (params->limited_cce != 0x00) { |
|
bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", |
|
params->limited_cce); |
|
return -EINVAL; |
|
} |
|
|
|
/* If the OTP has no valid Bluetooth device address, then there will |
|
* also be no valid address for the operational firmware. |
|
*/ |
|
if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { |
|
bt_dev_info(hdev, "No device address configured"); |
|
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); |
|
} |
|
|
|
download: |
|
/* With this Intel bootloader only the hardware variant and device |
|
* revision information are used to select the right firmware for SfP |
|
* and WsP. |
|
* |
|
* The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. |
|
* |
|
* Currently the supported hardware variants are: |
|
* 11 (0x0b) for iBT3.0 (LnP/SfP) |
|
* 12 (0x0c) for iBT3.5 (WsP) |
|
* |
|
* For ThP/JfP and for future SKU's, the FW name varies based on HW |
|
* variant, HW revision and FW revision, as these are dependent on CNVi |
|
* and RF Combination. |
|
* |
|
* 17 (0x11) for iBT3.5 (JfP) |
|
* 18 (0x12) for iBT3.5 (ThP) |
|
* |
|
* The firmware file name for these will be |
|
* ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. |
|
* |
|
*/ |
|
err = btintel_get_fw_name(ver, params, fwname, sizeof(fwname), "sfi"); |
|
if (err < 0) { |
|
if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) { |
|
/* Firmware has already been loaded */ |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
return 0; |
|
} |
|
|
|
bt_dev_err(hdev, "Unsupported Intel firmware naming"); |
|
return -EINVAL; |
|
} |
|
|
|
err = firmware_request_nowarn(&fw, fwname, &hdev->dev); |
|
if (err < 0) { |
|
if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) { |
|
/* Firmware has already been loaded */ |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
return 0; |
|
} |
|
|
|
bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)", |
|
fwname, err); |
|
return err; |
|
} |
|
|
|
bt_dev_info(hdev, "Found device firmware: %s", fwname); |
|
|
|
if (fw->size < 644) { |
|
bt_dev_err(hdev, "Invalid size of firmware file (%zu)", |
|
fw->size); |
|
err = -EBADF; |
|
goto done; |
|
} |
|
|
|
calltime = ktime_get(); |
|
|
|
btintel_set_flag(hdev, INTEL_DOWNLOADING); |
|
|
|
/* Start firmware downloading and get boot parameter */ |
|
err = btintel_download_firmware(hdev, ver, fw, boot_param); |
|
if (err < 0) { |
|
if (err == -EALREADY) { |
|
/* Firmware has already been loaded */ |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
err = 0; |
|
goto done; |
|
} |
|
|
|
/* When FW download fails, send Intel Reset to retry |
|
* FW download. |
|
*/ |
|
btintel_reset_to_bootloader(hdev); |
|
goto done; |
|
} |
|
|
|
/* Before switching the device into operational mode and with that |
|
* booting the loaded firmware, wait for the bootloader notification |
|
* that all fragments have been successfully received. |
|
* |
|
* When the event processing receives the notification, then the |
|
* INTEL_DOWNLOADING flag will be cleared. |
|
* |
|
* The firmware loading should not take longer than 5 seconds |
|
* and thus just timeout if that happens and fail the setup |
|
* of this device. |
|
*/ |
|
err = btintel_download_wait(hdev, calltime, 5000); |
|
if (err == -ETIMEDOUT) |
|
btintel_reset_to_bootloader(hdev); |
|
|
|
done: |
|
release_firmware(fw); |
|
return err; |
|
} |
|
|
|
static int btintel_bootloader_setup(struct hci_dev *hdev, |
|
struct intel_version *ver) |
|
{ |
|
struct intel_version new_ver; |
|
struct intel_boot_params params; |
|
u32 boot_param; |
|
char ddcname[64]; |
|
int err; |
|
|
|
BT_DBG("%s", hdev->name); |
|
|
|
/* Set the default boot parameter to 0x0 and it is updated to |
|
* SKU specific boot parameter after reading Intel_Write_Boot_Params |
|
* command while downloading the firmware. |
|
*/ |
|
boot_param = 0x00000000; |
|
|
|
btintel_set_flag(hdev, INTEL_BOOTLOADER); |
|
|
|
err = btintel_download_fw(hdev, ver, ¶ms, &boot_param); |
|
if (err) |
|
return err; |
|
|
|
/* controller is already having an operational firmware */ |
|
if (ver->fw_variant == 0x23) |
|
goto finish; |
|
|
|
err = btintel_boot(hdev, boot_param); |
|
if (err) |
|
return err; |
|
|
|
btintel_clear_flag(hdev, INTEL_BOOTLOADER); |
|
|
|
err = btintel_get_fw_name(ver, ¶ms, ddcname, |
|
sizeof(ddcname), "ddc"); |
|
|
|
if (err < 0) { |
|
bt_dev_err(hdev, "Unsupported Intel firmware naming"); |
|
} else { |
|
/* Once the device is running in operational mode, it needs to |
|
* apply the device configuration (DDC) parameters. |
|
* |
|
* The device can work without DDC parameters, so even if it |
|
* fails to load the file, no need to fail the setup. |
|
*/ |
|
btintel_load_ddc_config(hdev, ddcname); |
|
} |
|
|
|
hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); |
|
|
|
/* Read the Intel version information after loading the FW */ |
|
err = btintel_read_version(hdev, &new_ver); |
|
if (err) |
|
return err; |
|
|
|
btintel_version_info(hdev, &new_ver); |
|
|
|
finish: |
|
/* Set the event mask for Intel specific vendor events. This enables |
|
* a few extra events that are useful during general operation. It |
|
* does not enable any debugging related events. |
|
* |
|
* The device will function correctly without these events enabled |
|
* and thus no need to fail the setup. |
|
*/ |
|
btintel_set_event_mask(hdev, false); |
|
|
|
return 0; |
|
} |
|
|
|
static void btintel_get_fw_name_tlv(const struct intel_version_tlv *ver, |
|
char *fw_name, size_t len, |
|
const char *suffix) |
|
{ |
|
/* The firmware file name for new generation controllers will be |
|
* ibt-<cnvi_top type+cnvi_top step>-<cnvr_top type+cnvr_top step> |
|
*/ |
|
snprintf(fw_name, len, "intel/ibt-%04x-%04x.%s", |
|
INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver->cnvi_top), |
|
INTEL_CNVX_TOP_STEP(ver->cnvi_top)), |
|
INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver->cnvr_top), |
|
INTEL_CNVX_TOP_STEP(ver->cnvr_top)), |
|
suffix); |
|
} |
|
|
|
static int btintel_prepare_fw_download_tlv(struct hci_dev *hdev, |
|
struct intel_version_tlv *ver, |
|
u32 *boot_param) |
|
{ |
|
const struct firmware *fw; |
|
char fwname[64]; |
|
int err; |
|
ktime_t calltime; |
|
|
|
if (!ver || !boot_param) |
|
return -EINVAL; |
|
|
|
/* The firmware variant determines if the device is in bootloader |
|
* mode or is running operational firmware. The value 0x03 identifies |
|
* the bootloader and the value 0x23 identifies the operational |
|
* firmware. |
|
* |
|
* When the operational firmware is already present, then only |
|
* the check for valid Bluetooth device address is needed. This |
|
* determines if the device will be added as configured or |
|
* unconfigured controller. |
|
* |
|
* It is not possible to use the Secure Boot Parameters in this |
|
* case since that command is only available in bootloader mode. |
|
*/ |
|
if (ver->img_type == 0x03) { |
|
btintel_clear_flag(hdev, INTEL_BOOTLOADER); |
|
btintel_check_bdaddr(hdev); |
|
} else { |
|
/* |
|
* Check for valid bd address in boot loader mode. Device |
|
* will be marked as unconfigured if empty bd address is |
|
* found. |
|
*/ |
|
if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) { |
|
bt_dev_info(hdev, "No device address configured"); |
|
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); |
|
} |
|
} |
|
|
|
btintel_get_fw_name_tlv(ver, fwname, sizeof(fwname), "sfi"); |
|
err = firmware_request_nowarn(&fw, fwname, &hdev->dev); |
|
if (err < 0) { |
|
if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) { |
|
/* Firmware has already been loaded */ |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
return 0; |
|
} |
|
|
|
bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)", |
|
fwname, err); |
|
|
|
return err; |
|
} |
|
|
|
bt_dev_info(hdev, "Found device firmware: %s", fwname); |
|
|
|
if (fw->size < 644) { |
|
bt_dev_err(hdev, "Invalid size of firmware file (%zu)", |
|
fw->size); |
|
err = -EBADF; |
|
goto done; |
|
} |
|
|
|
calltime = ktime_get(); |
|
|
|
btintel_set_flag(hdev, INTEL_DOWNLOADING); |
|
|
|
/* Start firmware downloading and get boot parameter */ |
|
err = btintel_download_fw_tlv(hdev, ver, fw, boot_param, |
|
INTEL_HW_VARIANT(ver->cnvi_bt), |
|
ver->sbe_type); |
|
if (err < 0) { |
|
if (err == -EALREADY) { |
|
/* Firmware has already been loaded */ |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED); |
|
err = 0; |
|
goto done; |
|
} |
|
|
|
/* When FW download fails, send Intel Reset to retry |
|
* FW download. |
|
*/ |
|
btintel_reset_to_bootloader(hdev); |
|
goto done; |
|
} |
|
|
|
/* Before switching the device into operational mode and with that |
|
* booting the loaded firmware, wait for the bootloader notification |
|
* that all fragments have been successfully received. |
|
* |
|
* When the event processing receives the notification, then the |
|
* BTUSB_DOWNLOADING flag will be cleared. |
|
* |
|
* The firmware loading should not take longer than 5 seconds |
|
* and thus just timeout if that happens and fail the setup |
|
* of this device. |
|
*/ |
|
err = btintel_download_wait(hdev, calltime, 5000); |
|
if (err == -ETIMEDOUT) |
|
btintel_reset_to_bootloader(hdev); |
|
|
|
done: |
|
release_firmware(fw); |
|
return err; |
|
} |
|
|
|
static int btintel_get_codec_config_data(struct hci_dev *hdev, |
|
__u8 link, struct bt_codec *codec, |
|
__u8 *ven_len, __u8 **ven_data) |
|
{ |
|
int err = 0; |
|
|
|
if (!ven_data || !ven_len) |
|
return -EINVAL; |
|
|
|
*ven_len = 0; |
|
*ven_data = NULL; |
|
|
|
if (link != ESCO_LINK) { |
|
bt_dev_err(hdev, "Invalid link type(%u)", link); |
|
return -EINVAL; |
|
} |
|
|
|
*ven_data = kmalloc(sizeof(__u8), GFP_KERNEL); |
|
if (!*ven_data) { |
|
err = -ENOMEM; |
|
goto error; |
|
} |
|
|
|
/* supports only CVSD and mSBC offload codecs */ |
|
switch (codec->id) { |
|
case 0x02: |
|
**ven_data = 0x00; |
|
break; |
|
case 0x05: |
|
**ven_data = 0x01; |
|
break; |
|
default: |
|
err = -EINVAL; |
|
bt_dev_err(hdev, "Invalid codec id(%u)", codec->id); |
|
goto error; |
|
} |
|
/* codec and its capabilities are pre-defined to ids |
|
* preset id = 0x00 represents CVSD codec with sampling rate 8K |
|
* preset id = 0x01 represents mSBC codec with sampling rate 16K |
|
*/ |
|
*ven_len = sizeof(__u8); |
|
return err; |
|
|
|
error: |
|
kfree(*ven_data); |
|
*ven_data = NULL; |
|
return err; |
|
} |
|
|
|
static int btintel_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id) |
|
{ |
|
/* Intel uses 1 as data path id for all the usecases */ |
|
*data_path_id = 1; |
|
return 0; |
|
} |
|
|
|
static int btintel_configure_offload(struct hci_dev *hdev) |
|
{ |
|
struct sk_buff *skb; |
|
int err = 0; |
|
struct intel_offload_use_cases *use_cases; |
|
|
|
skb = __hci_cmd_sync(hdev, 0xfc86, 0, NULL, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Reading offload use cases failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
if (skb->len < sizeof(*use_cases)) { |
|
err = -EIO; |
|
goto error; |
|
} |
|
|
|
use_cases = (void *)skb->data; |
|
|
|
if (use_cases->status) { |
|
err = -bt_to_errno(skb->data[0]); |
|
goto error; |
|
} |
|
|
|
if (use_cases->preset[0] & 0x03) { |
|
hdev->get_data_path_id = btintel_get_data_path_id; |
|
hdev->get_codec_config_data = btintel_get_codec_config_data; |
|
} |
|
error: |
|
kfree_skb(skb); |
|
return err; |
|
} |
|
|
|
static int btintel_bootloader_setup_tlv(struct hci_dev *hdev, |
|
struct intel_version_tlv *ver) |
|
{ |
|
u32 boot_param; |
|
char ddcname[64]; |
|
int err; |
|
struct intel_version_tlv new_ver; |
|
|
|
bt_dev_dbg(hdev, ""); |
|
|
|
/* Set the default boot parameter to 0x0 and it is updated to |
|
* SKU specific boot parameter after reading Intel_Write_Boot_Params |
|
* command while downloading the firmware. |
|
*/ |
|
boot_param = 0x00000000; |
|
|
|
btintel_set_flag(hdev, INTEL_BOOTLOADER); |
|
|
|
err = btintel_prepare_fw_download_tlv(hdev, ver, &boot_param); |
|
if (err) |
|
return err; |
|
|
|
/* check if controller is already having an operational firmware */ |
|
if (ver->img_type == 0x03) |
|
goto finish; |
|
|
|
err = btintel_boot(hdev, boot_param); |
|
if (err) |
|
return err; |
|
|
|
btintel_clear_flag(hdev, INTEL_BOOTLOADER); |
|
|
|
btintel_get_fw_name_tlv(ver, ddcname, sizeof(ddcname), "ddc"); |
|
/* Once the device is running in operational mode, it needs to |
|
* apply the device configuration (DDC) parameters. |
|
* |
|
* The device can work without DDC parameters, so even if it |
|
* fails to load the file, no need to fail the setup. |
|
*/ |
|
btintel_load_ddc_config(hdev, ddcname); |
|
|
|
/* Read supported use cases and set callbacks to fetch datapath id */ |
|
btintel_configure_offload(hdev); |
|
|
|
hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); |
|
|
|
/* Read the Intel version information after loading the FW */ |
|
err = btintel_read_version_tlv(hdev, &new_ver); |
|
if (err) |
|
return err; |
|
|
|
btintel_version_info_tlv(hdev, &new_ver); |
|
|
|
finish: |
|
/* Set the event mask for Intel specific vendor events. This enables |
|
* a few extra events that are useful during general operation. It |
|
* does not enable any debugging related events. |
|
* |
|
* The device will function correctly without these events enabled |
|
* and thus no need to fail the setup. |
|
*/ |
|
btintel_set_event_mask(hdev, false); |
|
|
|
return 0; |
|
} |
|
|
|
static void btintel_set_msft_opcode(struct hci_dev *hdev, u8 hw_variant) |
|
{ |
|
switch (hw_variant) { |
|
/* Legacy bootloader devices that supports MSFT Extension */ |
|
case 0x11: /* JfP */ |
|
case 0x12: /* ThP */ |
|
case 0x13: /* HrP */ |
|
case 0x14: /* CcP */ |
|
/* All Intel new genration controllers support the Microsoft vendor |
|
* extension are using 0xFC1E for VsMsftOpCode. |
|
*/ |
|
case 0x17: |
|
case 0x18: |
|
case 0x19: |
|
hci_set_msft_opcode(hdev, 0xFC1E); |
|
break; |
|
default: |
|
/* Not supported */ |
|
break; |
|
} |
|
} |
|
|
|
static int btintel_setup_combined(struct hci_dev *hdev) |
|
{ |
|
const u8 param[1] = { 0xFF }; |
|
struct intel_version ver; |
|
struct intel_version_tlv ver_tlv; |
|
struct sk_buff *skb; |
|
int err; |
|
|
|
BT_DBG("%s", hdev->name); |
|
|
|
/* The some controllers have a bug with the first HCI command sent to it |
|
* returning number of completed commands as zero. This would stall the |
|
* command processing in the Bluetooth core. |
|
* |
|
* As a workaround, send HCI Reset command first which will reset the |
|
* number of completed commands and allow normal command processing |
|
* from now on. |
|
* |
|
* Regarding the INTEL_BROKEN_SHUTDOWN_LED flag, these devices maybe |
|
* in the SW_RFKILL ON state as a workaround of fixing LED issue during |
|
* the shutdown() procedure, and once the device is in SW_RFKILL ON |
|
* state, the only way to exit out of it is sending the HCI_Reset |
|
* command. |
|
*/ |
|
if (btintel_test_flag(hdev, INTEL_BROKEN_INITIAL_NCMD) || |
|
btintel_test_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED)) { |
|
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, |
|
HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, |
|
"sending initial HCI reset failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
} |
|
|
|
/* Starting from TyP device, the command parameter and response are |
|
* changed even though the OCF for HCI_Intel_Read_Version command |
|
* remains same. The legacy devices can handle even if the |
|
* command has a parameter and returns a correct version information. |
|
* So, it uses new format to support both legacy and new format. |
|
*/ |
|
skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "Reading Intel version command failed (%ld)", |
|
PTR_ERR(skb)); |
|
return PTR_ERR(skb); |
|
} |
|
|
|
/* Check the status */ |
|
if (skb->data[0]) { |
|
bt_dev_err(hdev, "Intel Read Version command failed (%02x)", |
|
skb->data[0]); |
|
err = -EIO; |
|
goto exit_error; |
|
} |
|
|
|
/* Apply the common HCI quirks for Intel device */ |
|
set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); |
|
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); |
|
set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); |
|
|
|
/* Set up the quality report callback for Intel devices */ |
|
hdev->set_quality_report = btintel_set_quality_report; |
|
|
|
/* For Legacy device, check the HW platform value and size */ |
|
if (skb->len == sizeof(ver) && skb->data[1] == 0x37) { |
|
bt_dev_dbg(hdev, "Read the legacy Intel version information"); |
|
|
|
memcpy(&ver, skb->data, sizeof(ver)); |
|
|
|
/* Display version information */ |
|
btintel_version_info(hdev, &ver); |
|
|
|
/* Check for supported iBT hardware variants of this firmware |
|
* loading method. |
|
* |
|
* This check has been put in place to ensure correct forward |
|
* compatibility options when newer hardware variants come |
|
* along. |
|
*/ |
|
switch (ver.hw_variant) { |
|
case 0x07: /* WP */ |
|
case 0x08: /* StP */ |
|
/* Legacy ROM product */ |
|
btintel_set_flag(hdev, INTEL_ROM_LEGACY); |
|
|
|
/* Apply the device specific HCI quirks |
|
* |
|
* WBS for SdP - For the Legacy ROM products, only SdP |
|
* supports the WBS. But the version information is not |
|
* enough to use here because the StP2 and SdP have same |
|
* hw_variant and fw_variant. So, this flag is set by |
|
* the transport driver (btusb) based on the HW info |
|
* (idProduct) |
|
*/ |
|
if (!btintel_test_flag(hdev, |
|
INTEL_ROM_LEGACY_NO_WBS_SUPPORT)) |
|
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, |
|
&hdev->quirks); |
|
|
|
err = btintel_legacy_rom_setup(hdev, &ver); |
|
break; |
|
case 0x0b: /* SfP */ |
|
case 0x0c: /* WsP */ |
|
case 0x11: /* JfP */ |
|
case 0x12: /* ThP */ |
|
case 0x13: /* HrP */ |
|
case 0x14: /* CcP */ |
|
/* Apply the device specific HCI quirks |
|
* |
|
* All Legacy bootloader devices support WBS |
|
*/ |
|
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, |
|
&hdev->quirks); |
|
|
|
/* Valid LE States quirk for JfP/ThP familiy */ |
|
if (ver.hw_variant == 0x11 || ver.hw_variant == 0x12) |
|
set_bit(HCI_QUIRK_VALID_LE_STATES, |
|
&hdev->quirks); |
|
|
|
/* Setup MSFT Extension support */ |
|
btintel_set_msft_opcode(hdev, ver.hw_variant); |
|
|
|
err = btintel_bootloader_setup(hdev, &ver); |
|
break; |
|
default: |
|
bt_dev_err(hdev, "Unsupported Intel hw variant (%u)", |
|
ver.hw_variant); |
|
err = -EINVAL; |
|
} |
|
|
|
goto exit_error; |
|
} |
|
|
|
/* memset ver_tlv to start with clean state as few fields are exclusive |
|
* to bootloader mode and are not populated in operational mode |
|
*/ |
|
memset(&ver_tlv, 0, sizeof(ver_tlv)); |
|
/* For TLV type device, parse the tlv data */ |
|
err = btintel_parse_version_tlv(hdev, &ver_tlv, skb); |
|
if (err) { |
|
bt_dev_err(hdev, "Failed to parse TLV version information"); |
|
goto exit_error; |
|
} |
|
|
|
if (INTEL_HW_PLATFORM(ver_tlv.cnvi_bt) != 0x37) { |
|
bt_dev_err(hdev, "Unsupported Intel hardware platform (0x%2x)", |
|
INTEL_HW_PLATFORM(ver_tlv.cnvi_bt)); |
|
err = -EINVAL; |
|
goto exit_error; |
|
} |
|
|
|
/* Check for supported iBT hardware variants of this firmware |
|
* loading method. |
|
* |
|
* This check has been put in place to ensure correct forward |
|
* compatibility options when newer hardware variants come |
|
* along. |
|
*/ |
|
switch (INTEL_HW_VARIANT(ver_tlv.cnvi_bt)) { |
|
case 0x11: /* JfP */ |
|
case 0x12: /* ThP */ |
|
case 0x13: /* HrP */ |
|
case 0x14: /* CcP */ |
|
/* Some legacy bootloader devices starting from JfP, |
|
* the operational firmware supports both old and TLV based |
|
* HCI_Intel_Read_Version command based on the command |
|
* parameter. |
|
* |
|
* For upgrading firmware case, the TLV based version cannot |
|
* be used because the firmware filename for legacy bootloader |
|
* is based on the old format. |
|
* |
|
* Also, it is not easy to convert TLV based version from the |
|
* legacy version format. |
|
* |
|
* So, as a workaround for those devices, use the legacy |
|
* HCI_Intel_Read_Version to get the version information and |
|
* run the legacy bootloader setup. |
|
*/ |
|
err = btintel_read_version(hdev, &ver); |
|
if (err) |
|
return err; |
|
|
|
/* Apply the device specific HCI quirks |
|
* |
|
* All Legacy bootloader devices support WBS |
|
*/ |
|
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); |
|
|
|
/* Valid LE States quirk for JfP/ThP familiy */ |
|
if (ver.hw_variant == 0x11 || ver.hw_variant == 0x12) |
|
set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); |
|
|
|
/* Setup MSFT Extension support */ |
|
btintel_set_msft_opcode(hdev, ver.hw_variant); |
|
|
|
err = btintel_bootloader_setup(hdev, &ver); |
|
break; |
|
case 0x17: |
|
case 0x18: |
|
case 0x19: |
|
/* Display version information of TLV type */ |
|
btintel_version_info_tlv(hdev, &ver_tlv); |
|
|
|
/* Apply the device specific HCI quirks for TLV based devices |
|
* |
|
* All TLV based devices support WBS |
|
*/ |
|
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); |
|
|
|
/* Valid LE States quirk for GfP */ |
|
if (INTEL_HW_VARIANT(ver_tlv.cnvi_bt) == 0x18) |
|
set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); |
|
|
|
/* Setup MSFT Extension support */ |
|
btintel_set_msft_opcode(hdev, |
|
INTEL_HW_VARIANT(ver_tlv.cnvi_bt)); |
|
|
|
err = btintel_bootloader_setup_tlv(hdev, &ver_tlv); |
|
break; |
|
default: |
|
bt_dev_err(hdev, "Unsupported Intel hw variant (%u)", |
|
INTEL_HW_VARIANT(ver_tlv.cnvi_bt)); |
|
return -EINVAL; |
|
} |
|
|
|
exit_error: |
|
kfree_skb(skb); |
|
|
|
return err; |
|
} |
|
|
|
static int btintel_shutdown_combined(struct hci_dev *hdev) |
|
{ |
|
struct sk_buff *skb; |
|
int ret; |
|
|
|
/* Send HCI Reset to the controller to stop any BT activity which |
|
* were triggered. This will help to save power and maintain the |
|
* sync b/w Host and controller |
|
*/ |
|
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
bt_dev_err(hdev, "HCI reset during shutdown failed"); |
|
return PTR_ERR(skb); |
|
} |
|
kfree_skb(skb); |
|
|
|
|
|
/* Some platforms have an issue with BT LED when the interface is |
|
* down or BT radio is turned off, which takes 5 seconds to BT LED |
|
* goes off. As a workaround, sends HCI_Intel_SW_RFKILL to put the |
|
* device in the RFKILL ON state which turns off the BT LED immediately. |
|
*/ |
|
if (btintel_test_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED)) { |
|
skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
ret = PTR_ERR(skb); |
|
bt_dev_err(hdev, "turning off Intel device LED failed"); |
|
return ret; |
|
} |
|
kfree_skb(skb); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int btintel_configure_setup(struct hci_dev *hdev) |
|
{ |
|
hdev->manufacturer = 2; |
|
hdev->setup = btintel_setup_combined; |
|
hdev->shutdown = btintel_shutdown_combined; |
|
hdev->hw_error = btintel_hw_error; |
|
hdev->set_diag = btintel_set_diag_combined; |
|
hdev->set_bdaddr = btintel_set_bdaddr; |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_configure_setup); |
|
|
|
void btintel_bootup(struct hci_dev *hdev, const void *ptr, unsigned int len) |
|
{ |
|
const struct intel_bootup *evt = ptr; |
|
|
|
if (len != sizeof(*evt)) |
|
return; |
|
|
|
if (btintel_test_and_clear_flag(hdev, INTEL_BOOTING)) |
|
btintel_wake_up_flag(hdev, INTEL_BOOTING); |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_bootup); |
|
|
|
void btintel_secure_send_result(struct hci_dev *hdev, |
|
const void *ptr, unsigned int len) |
|
{ |
|
const struct intel_secure_send_result *evt = ptr; |
|
|
|
if (len != sizeof(*evt)) |
|
return; |
|
|
|
if (evt->result) |
|
btintel_set_flag(hdev, INTEL_FIRMWARE_FAILED); |
|
|
|
if (btintel_test_and_clear_flag(hdev, INTEL_DOWNLOADING) && |
|
btintel_test_flag(hdev, INTEL_FIRMWARE_LOADED)) |
|
btintel_wake_up_flag(hdev, INTEL_DOWNLOADING); |
|
} |
|
EXPORT_SYMBOL_GPL(btintel_secure_send_result); |
|
|
|
MODULE_AUTHOR("Marcel Holtmann <[email protected]>"); |
|
MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION); |
|
MODULE_VERSION(VERSION); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_FIRMWARE("intel/ibt-11-5.sfi"); |
|
MODULE_FIRMWARE("intel/ibt-11-5.ddc"); |
|
MODULE_FIRMWARE("intel/ibt-12-16.sfi"); |
|
MODULE_FIRMWARE("intel/ibt-12-16.ddc");
|
|
|